<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>成功页面</title>
</head>
<body>
<h1>入门成功了！</h1>
request域的msg信息:${requestScope.msg}<br>
session域的msg信息:${sessionScope.msg}<br>
</body>
</html>
